Suitable for all kinds of high voltage electrical equipment in power system、Insulation material insulation strength test under power frequency or dc high voltage
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High-voltage test transformers are a series of products developed and manufactured through extensive improvements based on the original models in compliance with the "Test Transformer" standard. These transformers adhere to DL/T848.2-2004 "General Technical Specifications for High-Voltage Test Devices - Part 2: Power Frequency High-Voltage Test Devices" and represent a new generation of advanced equipment.
This product line features compact size, lightweight design, integrated structure, versatile functionality, broad applicability, and user-friendly operation. It is particularly suitable for insulation strength testing under power frequency or DC high voltage conditions, serving power systems, industrial enterprises, mining sectors, and research institutions in evaluating various high-voltage electrical equipment, components, and insulating materials. As an essential apparatus in high-voltage testing, it plays a crucial role in ensuring electrical safety and compliance verification.
Product nickname: oil-immersed transformer、Oil type variable、High pressure oil-immersed test transformer、YDJ、Power voltage test transformer、Ac-dc high voltage test transformer
| specifications and models | capacity(kVA) | High Voltage(kV) | high-tension current(mA) | low input voltage | ratio of transformation(high /rites) | temperature rise℃(30 minutes) | |
| tension(V) | electricity(A) | ||||||
| YDJ-3/50 | 3 | 50 | 60 | 200 | 15 | 500 | 10 |
| YDJ-5/50 | 5 | 50 | 100 | 200 | 25 | 500 | 10 |
| YDJ-10/50 | 10 | 50 | 200 | 200 | 50 | 500 | 10 |
| YDJ-20/50 | 20 | 50 | 400 | 400 | 50 | 500 | 10 |
| YDJ-30/50 | 30 | 50 | 600 | 400 | 50 | 500 | 10 |
| YDJ-50/50 | 50 | 50 | 1000 | 400 | 125 | 500 |
10 |
| YDJ-5/100 | 5 | 100 | 50 | 200 | 25 | 1000 |
10 |
| YDJ-10/100 | 10 | 100 | 100 | 400 | 25 | 1000 |
10 |
| YDJ-10/25 | 10 | 25 | 400 | 400 | 25 | 1000 |
10 |
| YDJ-20/100 | 20 | 100 | 200 | 400 | 50 | 1000 |
10 |
| YDJ-30/100 | 30 | 100 | 300 | 400 | 75 | 1000 | 10 |
| YDJ-50/100 | 50 | 100 | 500 | 400 | 125 | 1000 | 10 |
| YDJ-15/150 | 15 | 150 | 100 | 400 | 37.5 | 1000 | 10 |
| YDJ-20/150 | 20 | 150 | 133 | 400 | 50 | 1000 | 10 |
| YDJ-30/150 | 30 | 150 | 200 | 400 | 75 | 1000 | 10 |
| YDJ-50/150 | 50 | 150 | 333 | 400 | 125 | 1000 | 10 |
| YDJ-100/150 | 100 | 150 | 667 | 400 | 250 | 1000 | 10 |
| YDJ-50/200 | 50 | 200 | 250 | 400 | 125 | 1000 | 10 |
| YDJ-100/200 | 100 | 200 | 500 | 400 | 250 | 1000 | 10 |
| YDJ-150/200 | 150 | 200 | 750 | 400 | 375 | 1000 | 10 |
| YDJ-200/200 | 200 | 200 | 1000 | 400 | 500 | 1000 | 10 |
| YDJ-300/200 | 300 | 200 | 1500 | 400 | 750 | 1000 | 10 |
| YDJ-50/300 | 50 | 300 | 170 | 400 | 125 | 1000 | 10 |
| YDJ-100/300 | 100 | 300 | 333 | 400 | 250 | 1000 | 10 |
| YDJ-150/300 | 150 | 300 | 500 | 400 | 375 | 1000 | 10 |
| YDJ-200/300 | 200 | 300 | 667 | 400 | 500 | 1000 | 10 |
| YDJ-300/300 | 300 | 300 | 3000 | 400 | 750 | 1000 | 10 |
1.The appearance of the product shall be subject to the actual product，If there are any changes in technical parameters and models，without prior notice.If there is theft or copying，Legal responsibility will be pursued.
2.For more information aboutWuhan UHV, please enter product center. Service email：info@hvtest.cc
1、High voltage test transformer has excellent material selection，reliable quality，good stability
2、Large voltage margin，Corona ring small，Bureau of dropping
3、New insulation materials are used，small in size，Light weight
1、AC and DC High-Voltage Output: It generates high-voltage AC output for power frequency withstand tests. With the addition of a high-voltage silicon stack, it can provide DC high voltage for DC withstand and leakage current tests, offering flexibility for different testing standards.
2、Wide Range of Models: The YDJ series is available in an extensive range of models with varying capacities and output voltages. product page lists specifications for models from 3kVA/50kV up to 300kVA/300kV, with different input voltage options and high-tension currents, to suit a broad spectrum of applications.
3、Robust Construction: As an oil-immersed unit, it uses high-quality transformer oil for insulation and cooling, contributing to its ability to handle high voltages and provide stable performance.
4、Reliable Performance: The transformer is designed with excellent material selection, large voltage margin, and a small corona ring to minimize partial discharge, ensuring good stability and reliable quality.
1、High Power and Capacity: With models up to 300kVA and 300kV, this series is capable of testing large, high-voltage power equipment like power transformers, large generators, and high-voltage cables, where lower-rated dry-type units may be insufficient.
2、Excellent Insulation and Cooling: The oil-immersed design provides superior insulation strength and effective heat dissipation, making it suitable for extended or demanding test duty cycles compared to dry-type units.
3、Superior Voltage Margin and Partial Discharge Performance: The design features a large voltage margin and a small corona ring, which helps to minimize partial discharge, leading to more accurate and reliable test results, especially for sensitive equipment.
4、Reliable and Durable: The use of new insulation materials and meticulous construction ensures reliable quality, good stability, and a long service life. The product is designed and manufactured in compliance with standards like DL/T848.2-2004.
1、Power Utilities and Large Substations: Used for insulation strength testing of large power transformers, high-voltage circuit breakers, GIS, power cables, and other major apparatus during commissioning, preventive maintenance, and after repairs.
2、Heavy Electrical Equipment Manufacturing: Employed by manufacturers of large transformers, generators, and high-voltage switchgear for factory acceptance and type tests.
3、High-Voltage Testing Laboratories: Used in research institutes and accredited high-voltage labs for performing standardized tests (e.g., IEC, GB) and conducting research on insulation materials and designs for high-voltage components.
4、Industrial and Mining Applications: Utilized in large industrial plants (e.g., steel, petrochemical, mining) with high-voltage power distribution systems for maintenance and troubleshooting.
Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.
email： info@hvtest.cc
Skype： Tina Qiao
+8615172408058
